Question #da586

1 Answer
Jan 17, 2018

81

Explanation:

The distance between the below sea level and above sea level is the sum of the distances.

It takes 56 feet to get to the surface. Then another 25 ft to reach the bird. Therefore it necessary to add the distance.

Mathmatically to find the distance between two number you subtract the numbers. For example.

The distance between 20 and 5 is 15

# 20-5 = 15#

so the distance between is #25 - (-65) #

# 25 - ( - 65) = 25 + 65#

# - (-65) = + 65#
( Think about it this way taking away a negative is positive. Mom takes away a punishment that is positive)

# 25 - (-65) = 25 + 65 = 81#